{Date}
Dear {Name},
I would like to request your permission to go on vacation from {start date} to {end date}. I have been accumulating vacation time for the past {number} years, and this would be the best time for me.
Please let me know if this will work out for you, and if so, I will make sure I stay in contact via phone and email while I am away. You will be able to reach me at {phone number} and {email address} and I will respond as soon as I am able to.
Thank you in advance!
Sincerely,
{Name}
